From the Gospel according to Mark
MK 9:30-37

Jesus and his disciples left from there and began a journey through Galilee, but he did not wish anyone to know about it.  He was teaching his disciples and telling them, “The Son of Man is to be handed over to men and they will kill him, and three days after his death the Son of Man will rise.”  But they did not understand the saying, and they were afraid to question him.

They came to Capernaum and, once inside the house, he began to ask them, “What were you arguing about on the way?”  But they remained silent. For they had been discussing among themselves on the way who was the greatest. Then he sat down, called the Twelve, and said to them,  “If anyone wishes to be first, he shall be the last of all and the servant of all.”  Taking a child, he placed it in their midst, and putting his arms around it, he said to them, “Whoever receives one child such as this in my name, receives me; and whoever receives me, receives not me but the One who sent me.”

From the Gospel according to Mark
MK 9:14-29

As Jesus came down from the mountain with Peter, James, John and approached the other disciples, they saw a large crowd around them and scribes arguing with them.  Immediately on seeing him, the whole crowd was utterly amazed.  They ran up to him and greeted him.  He asked them, “What are you arguing about with them?”  Someone from the crowd answered him,  “Teacher, I have brought to you my son possessed by a mute spirit.  Wherever it seizes him, it throws him down; he foams at the mouth, grinds his teeth, and becomes rigid.  I asked your disciples to drive it out, but they were unable to do so.”  He said to them in reply, “O faithless generation, how long will I be with you?  How long will I endure you? Bring him to me.”  They brought the boy to him.  And when he saw him, the spirit immediately threw the boy into convulsions.  As he fell to the ground, he began to roll around and foam at the mouth.  Then he questioned his father,  “How long has this been happening to him?” He replied, “Since childhood.  It has often thrown him into fire and into water to kill him.  But if you can do anything, have compassion on us and help us.”  Jesus said to him,  “‘If you can!’ Everything is possible to one who has faith.”  Then the boy’s father cried out, “I do believe, help my unbelief!”  Jesus, on seeing a crowd rapidly gathering, rebuked the unclean spirit and said to it, “Mute and deaf spirit, I command you:  come out of him and never enter him again!”  Shouting and throwing the boy into convulsions, it came out.  He became like a corpse, which caused many to say, “He is dead!” But Jesus took him by the hand, raised him, and he stood up. When he entered the house, his disciples asked him in private, “Why could we not drive the spirit out?” He said to them, “This kind can only come out through prayer.”

From the Gospel according to Matthew
MT 5:38-48

Jesus said to his disciples: “You have heard that it was said, An eye for an eye and a tooth for a tooth.  But I say to you, offer no resistance to one who is evil.  When someone strikes you on your right cheek, turn the other one as well.  If anyone wants to go to law with you over your tunic, hand over your cloak as well.  Should anyone press you into service for one mile, go for two miles.  Give to the one who asks of you, and do not turn your back on one who wants to borrow.

“You have heard that it was said, You shall love your neighbor and hate your enemy.  But I say to you, love your enemies and pray for those who persecute you, that you may be children of your heavenly Father, for he makes his sun rise on the bad and the good, and causes rain to fall on the just and the unjust.  For if you love those who love you, what recompense will you have? Do not the tax collectors do the same?  And if you greet your brothers only, what is unusual about that?  Do not the pagans do the same? So be perfect, just as your heavenly Father is perfect.”

From the Gospel according to Matthew
MT 16:13-19

When Jesus went into the region of Caesarea Philippi he asked his disciples,  “Who do people say that the Son of Man is?” They replied, “Some say John the Baptist, others Elijah, still others Jeremiah or one of the prophets.”  He said to them, “But who do you say that I am?”  Simon Peter said in reply, “You are the Christ, the Son of the living God.”  Jesus said to him in reply, “Blessed are you, Simon son of Jonah.  For flesh and blood has not revealed this to you, but my heavenly Father.  And so I say to you, you are Peter, and upon this rock I will build my Church, and the gates of the netherworld shall not prevail against it. I will give you the keys to the Kingdom of heaven. Whatever you bind on earth shall be bound in heaven; and whatever you loose on earth shall be loosed in heaven.”